What three numbers have an average of 487?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 487. This means if we add these three numbers together and divide by 3, we should get 487.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 487 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 487 * 3 = x + y + z
- So, the sum of our three numbers should be: 1461
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1461.
Solution 1:
487, 487, 487
Verification:
(487 + 487 + 487) / 3 = 1461 / 3 ≈ 487
This solution is correct!
Solution 2:
487, 487, 487
Verification:
(487 + 487 + 487) / 3 = 1461 / 3 ≈ 487
This solution is correct!
Solution 3:
719, 174, 568
Verification:
(719 + 174 + 568) / 3 = 1461 / 3 ≈ 487
This solution is correct!
Solution 4:
1036, 73, 352
Verification:
(1036 + 73 + 352) / 3 = 1461 / 3 ≈ 487
This solution is correct!
Solution 5:
20, 1315, 126
Verification:
(20 + 1315 + 126) / 3 = 1461 / 3 ≈ 487
This solution is correct!
Explanation:
As you can see, there are many possible solutions. We can find more by:
- Choosing any two numbers
- Subtracting their sum from 1461 to get the third number
Remember:
- The numbers don't have to be whole numbers.
- They can even be negative (although that might not make sense in some real-world contexts).
- The order of the numbers doesn't matter for the average.